import random

def russian_roulette(num_players):
    print(f"{num_players} players are playing Russian Roulette.")

    revolver_chambers = [0, 0, 0, 0, 0, 1]  # 1 bullet in 6 chambers
    random.shuffle(revolver_chambers)  # shuffle chambers

    player = 0  # start with first player
    while True:
        input(f"Player {player + 1}, press Enter to pull the trigger...")
        if revolver_chambers.pop() == 1:
            print(f"Bang! Player {player + 1} lost!")
            return
        else:
            print("Click. Safe!")

        player = (player + 1) % num_players  # switch to the next player

russian_roulette(2)